For the 1.3 million people who suffer renal failure each year, kidney dialysis is a major undertaking. The lengthy out-patient process requires near-daily trips to the doctor’s office to be hooked up for hours to a massive machine; making it difficult to hold a job or have a normal social life. But Victor Gura of UCLA’s Geffen School of medicine has patented and tested the holy grail of nephrology: a portable, wearable dialysis machine.